Tl* the contact owns a 2011 e350 Mercedes benz. The contact stated that the tail gate would unlatch and open sporadically and without warning. The dealer was unable to diagnose the failure. The manufacturer was not contacted and the vehicle was not repaired. The failure mileage was 10,000 and the current mileage was 12,000. The VIN was unavailable.
2011 Mercedes-Benz E-Class body problems
severe 11 complaints filed with NHTSA · avg repair $1,500 · see body across all vehicles →
Complaints
11
Recalls
0
Avg fix
$1,500
2crashes
1injury
When does it fail?
Of the 11 body complaints filed for the 2011 Mercedes-Benz E-Class, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Among the 13 model years of Mercedes-Benz E-Class in our records for body problems, this one ranks #3 by owner-complaint volume.
No new NHTSA body complaint has been filed on this vehicle in over 14 years — the issue may be aging out of the active population.
The failure pattern owners describe
Buyer takeaway: Multiple owners report serious structural failures—particularly rear subframe rust causing unexpected vehicle handling and potential safety hazards—plus sunroof leaks, spontaneous headrest deployment, sudden acceleration, and electronics malfunctions. Mercedes dealerships have been unresponsive or unhelpful with diagnosis and repair on these issues.
Owners describe multiple distinct structural and mechanical issues. The rear subframe corrosion is the most common complaint—several report rust and corrosion at 123,000–132,000 miles, with one vehicle exhibiting cracks and fractures. One owner's failed subframe caused unintended lane drift during hard braking; another repair shop warned that subframe failure could lead to tire detachment and fuel tank rupture.
Sunroof problems span detachment and water intrusion causing interior mold and visibility loss, plus cracking noises over bumps (worse in hot weather). One headrest spontaneously deployed after hitting a pothole, injuring the owner's neck; the dealer offered a system reset rather than replacement. A trunk lid unlatches and opens without warning. One vehicle exhibits sudden acceleration events—the owner reports a second occurrence—with airbags failing to deploy. A radio automatically switches on when the transmission shifts into reverse, distracting the driver. Owners note the dealership has been unhelpful, either unable to diagnose failures or unwilling to assist without charge.
Same Mercedes-Benz E-Class body reports on nearby years: 2013 · 2014
Failure modes owners describe
Rear subframe corrosion and fracture
Severe rust and corrosion of the rear subframe, particularly around the wheel areas, with documented cases of fracturing and cracking. One owner reported unintended vehicle veering to the left during braking as a result of subframe failure.
When: 123,000–132,000 miles
Symptoms owners cite: Vehicle veering unexpectedly during braking; Visible rust and corrosion around wheel areas; Subframe fractures and cracks
Repairs/costs cited: One vehicle was not yet repaired; another was diagnosed at an independent shop. Repair shop noted similar failures in W204 C-Class (2008–2014). Potential consequences cited: tire detachment and fuel tank rupture.
Recalls/TSBs owners mention: No assistance provided by dealer or manufacturer despite notification in at least one case.
Sunroof detachment and water intrusion
Sunroof attachment failure resulting in water leaks into interior doors, floorboard, and dashboard on both driver and passenger sides. Water intrusion led to mold growth and reduced driver visibility.
When: Time of failure not stated
Symptoms owners cite: Sunroof detaches; Water leaks into interior doors, floorboard, and dashboard; Mold growth in interior; Reduced driver visibility
Repairs/costs cited: Repaired out of pocket by owner. Dealership requested $1,000 fee for water intrusion inspection; owner went to authorized independent Mercedes mechanic instead.
Sunroof cracking noise
Loud cracking noise from sunroof when vehicle hits bumps or dips in road. Noise is more pronounced in hot weather.
When: Reported as present since purchase approximately one year prior
Symptoms owners cite: Loud cracking noise over bumps or dips; Noise increases in hot weather
Recalls/TSBs owners mention: Owner notes that certain model years have been recalled for sunroof issues but this vehicle has not been addressed.
Spontaneous headrest deployment
Headrest unexpectedly deployed and forcefully pushed forward after vehicle went over a pothole, causing neck injury. Headrest should only deploy in rear-end collision.
When: After hitting a pothole
Symptoms owners cite: Headrest forcefully deploys unexpectedly; Neck soreness and tenderness; Seat pushed forward
Recalls/TSBs owners mention: Dealership offered to reset the system rather than replace components.
Trunk lid spontaneous unlatching
Trunk/tailgate unlatches and opens sporadically without warning or operator input.
When: At 10,000 miles; current mileage 12,000
Symptoms owners cite: Trunk lid opens without warning; Unlatching occurs sporadically
Repairs/costs cited: Vehicle not repaired; dealer unable to diagnose the failure.
Sudden acceleration and airbag non-deployment
Vehicle unexpectedly accelerates to high speed without driver input. Owner reports two separate incidents. Airbags failed to deploy during a collision with a building.
When: First incident at parking lot; second incident at doctor's office parking
Symptoms owners cite: Sudden unintended acceleration; Vehicle jumps curb and strikes fixed object; Airbags fail to deploy on impact
Repairs/costs cited: Vehicle totaled following second incident.
Radio automatic activation in reverse
Radio automatically switches on when transmission is placed in reverse gear, even after being manually turned off. Causes driver distraction.
When: Time of failure not stated
Symptoms owners cite: Radio automatically activates when gear shifted to reverse; Occurs after manual shutdown; Driver distraction during reversing
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 2 most recent
The subframe is rusting in four places in the area of the wheels. If the frame breaks I could lose control of the vehicle
Had body trouble with your 2011 Mercedes-Benz E-Class?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the body problem on the 2011 Mercedes-Benz E-Class?
It's a meaningful issue. 11 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $1,500.
At what mileage does the body typically fail?
Based on the 11 complaints filed, body issues most often appear around 77,745 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $1,500 for body repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to body?
No active recalls currently cover body issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2011/Mercedes-Benz/E-Class.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.